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Dominant Factor for the Occurrence of a Steam Explosion Dominant Factor for the Occurrence of a Steam Explosion Dominant Factor for the Occurrence of a Steam Explosion Dominant Factor for the Occurrence of a Steam Explosion B.T.
Such accelerated fluid eventually could give a mechanical damage to the structure.
Although it was not clearly proven experimentally what factors affect the fragmentation and triggering for a steam explosion, the main factor that affects film stabilization is the collapse of the film, that is, an intimate contact of the molten fuel with water.
These are related to the inherent thermal properties (melting point, fusion heat, thermal conductivity, heat capacity, viscosity and temperature, etc.) depending on the material composition, and interaction conditions (ambient pressure, external trigger, melt mass and diameter, and noncondensable gas).
A dominant factor for a steam explosion seems to be a material effect.

However, designers have realized that all of those approaches do not take the other phases factors of product life cycle into consideration.
Actually, this phase optimizes the quality of the product, its production time and consequently saves money in case of taking into account the different product life cycle influencing factors.
Reference The considered factors Description The used methods Suzuki et al. [3] Assembly The purpose of this methodology is to identify the different kinds of faults that can arrive during the assembly phase of a complex product.
The main object properties and data properties for the functioning of the MS-Onto, their domains and their ranges were presented in Table 2.
Table 2 The main object properties and data properties for the functioning of the MS-Onto.

In the paper is investigated a method of ultrasonic connection of copper wires so that its joining has a higher mechanical strength.
In the ultrasonic joint process, there is no substantial change in the properties of the material in the joining zone since the bond is formed without the melting of the welding materials.
The paper [1] presents a research study that proposes to investigate the mechanical and metallographic aspects of the ultrasonic welding of Cu-Cu wires, to determines and evaluates the factors that govern the welding.
The components to be welded will be merged due to sonotrode oscillation receiving a high frequency mechanical relative movement.
This will result in a homogeneous welding that ensures high mechanical strength and good electrical conductivity.

When cracks located at, or near, interface between materials with dissimilar material properties, the stress/strain fields ahead of crack are different from those in homogeneous materials [6].
The result shows that both mismatch ratio M and weld thickness affect the mechanical performance of weld joints significantly.
The mechanical properties of the two materials at room temperature are shown in Table 1, and the true stress-strain curves are shown in Fig. 1 [9].
Table 1 Mechanical property data of the two materials at room temperature [9] Material A508 Alloy52Mb Modulus of elasticity (E) 202410 MPa 178130 MPa Poisson’s ratio (v) 0.3 0.3 Yield stress (σy) 512MPa 495MPa Tensile strength (σb) 647MPa 644MPa Fig.1.
J-resistance curves for the 2D specimens with different strength mismatch factors M Fig.5 shows effect of in-plane constraint (crack depth a/W) on crack growth resistance of four sets of specimens under different strength mismatch levels (M=0.25, 0.973, 1 and 2).

With the improvement of requirements for the building, and the effects of various factors for some existing steel structure building during the long-term service process, structural function is damaged, which requires reinforcement for existing structures to meet the requirements of its use of the function.
Introduction In recent years, with the improvement of steel production and material properties, the engineering application of steel structure is more and more widely, but the steel buildings in service are affected by the corrosive environment, design reasons, construction reasons, irregular use, etc., that structural damage is always appeared to cause that the bearing capacity is reduced and could not continue to play a stabilizing proper function because of the steel structure special material.
Development and mechanical characteristics of steel column reinforced by enclosed reinforced concrete Development.
Mechanical characteristics.
Research institutes, Xi'an University of Architecture and Technology, China Academy of Building Research, Tsinghua University, Hunan University, Southeast University and Southwest Jiaotong University have been studied successively on steel reinforced concrete structures, have proved the existence of slip between steel and concrete, and its significant impact mechanical properties of steel reinforced concrete members.

Study on Reasons of the Falling of the Overhead Line Based on Fault Tree Analysis WEI Fei-xiang1,a, SONG Yang2,b, MA Xiao-xu1,c, QIAN Ying1,d, 1College of Electrical Engineering & New Energy, China Three Gorges University, Yichang , Hubei, China 2Shandong Rizhao Power Supply Company Rizhao, Shandong, China aweifeixiang@126.com, bsy2006107103@163.com, crayonma@163.com, d345446702@qq.com Keywords: overhead Line Falling, FTA, reliability Abstract: The transmission line is an important part of the power system, its reliability will directly affect the reliability of the power system.
As an important part of the power system, the reliability of the transmission line will directly affect the operation of the power system.
(3) Insufficient of electrical and mechanical properties of the insulator play an important role in the overhead line falling event. 4 Summary Many aspects influence the overhead lines drop, the FTA method can more accurately evaluate the contribution of every factors.
The results show that the overhead lines running status influenced not only by the fittings and insulators mechanical strength, but also by the insulator electrical performance, the operating and lightning over-voltage.

The mechanical behaviours of SiCp_A356 composite at room and elevated temperature were investigated.
This is because of their superior properties such as enhanced specific strength and stiffness, high thermal conductivity, low weight, high heat capacity and high-temperature resistance[3,5].
The mechanical properties of the material obtained from the tensile test and the parameters of Ramberg-Osgood model fitted by a least squares are given in Table 1.
Effect of reinforcement size on the elevated temperature tensile properties and low-cycle fatigue behavior of a particulate SiC/Al composite, Composites Science and Technology, 57, 1491-1499, 1999
Doong, High strain rate tensile properties of an (Al2O3 particles)-(Al alloy 6061-T6) metal matrix composite, Materials Science and Engineering, 1-2, 213-221, 1993

This research aims to evaluate the mechanical properties of a CO3Ap coated on Y-TZP using the dip coating method.
It can be concluded that the CO3Ap coating has no effect on the mechanical properties of Y-TZP.
The grain size significantly influences the mechanical properties of Y-TZP, whereas high temperature and longer sintering periods produce larger grain sizes and will subsequently diminish the mechanical properties due to large pore sizes.
The etched processes and CO3Ap coating did not change the mechanical properties of Y-TZP itself.
Swain, et al., Mechanical properties of in-ceram alumina and in-ceram zirconia.

The analysis of factors influencing the tension of rocks around shafts shows that, with respect to designing of shelters with specified parameters of particle velocity, the most effective method of assessment of shaft stability seems to be calculation of change in depth of the limit position of rock outcrops in dependence on strength characteristics of the rocks.
A comprehensive calculation of change in the values of is dependence on the rock strength is made with respect to the relationship between mechanical and acoustic properties and specific properties of the geological structure of the rock layer.
After summarising the results of experimental studies of acoustic and mechanical properties of rocks in samples and implementation of the obtained data in shaft conditions, we obtain the dependence between the breaking strength under pressure and the acoustic resistance of rocks in the massif, which can be used in comprehensive calculations of limit equilibrium.
All you really need is the strength properties of rocks.
The calculated strength properties and also the acoustic properties of rock can be determined on the basis of the strength values and the level of disruption of the rock massif, where these values may be missing for the specific conditions of mine works and also for individual deposits (basins) in a number of cases.

It performs examination and evaluation to verify the structural integrity of part without compromising the mechanical or chemical properties of the material.
When selecting a sensitivity level one must consider many factors, including the environment under which the test will be performed, the surface finish of the specimen, and the size of defects sought [2].
The dwell time response based on the a few factors such as type of penetrant, type of material and magnitude of flaw.
Singh, Study of liquid penetrant NDT 2011, National conference on advancement and futuristic trends in mechanical and material engineering, 2011
Larson, Study of the factor affecting the sensitivity of liquid penetration testing, 2002